AISI 4140 Steel is a Chromium-Molybdenum alloy steel which widely used in Oil & Gas industry. AISI 4140 is similar to grade AISI 4130 but with a higher carbon content. SAE 4140 has greater strength and heat treatment than 4130 steel.

AISI 4140 Alloy Steel AISI 4140 steel stockholders and suppliers, delivering to the whole of the UK. AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content. The higher carbon content of AISI 4140 gives greater strength and heat